well, I have never had a dismasting, but have seen a pretty crazy one
It was while I was at sailing school.(those monohulls are so SLOW) we were sailing around, racing against the other classes, when suddenly we hear a fairly loud pop. I look over, and all I see is a Hobie 16 with a mast crashing down. I later found out that a damaged forestay/jib chainplate, and Mr. Hercules at the mainsheet was to blame. The chainplate failed right at the point where it connects to those two wires that come from the bow. since the mainsheet was in so tight, when it failed the mast came crashing down at great force. the skipper and crew bailed. boat patrol came after a minute or so to tow them back to dock. fortunetly no one was hurt.
'72 Hobie 16
with#56 Gonzo Nationals